Home / 18,389.41-25,382.60-10,840.12

Finding the Fourth Proportional to 18,389.41, 25,382.60 and 10,840.12

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Solution

The fourth proportional to 18,389.41, 25,382.60 and 10,840.12 is: 14,962.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,389.41 : 25,382.60 = 10,840.12 : x
  2. Step 2: Convert to fraction form
    18,389.41/25,382.60 = 10,840.12/x
  3. Step 3: Cross multiply
    18,389.41x = 25,382.60 × 10,840.12
  4. Step 4: Simplify right side
    18,389.41x = 275,150,429.91
  5. Step 5: Solve for x
    x = 275,150,429.91/18,389.41
  6. Step 6: Final answer
    x = 14,962.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.